I've been using time-warp-test from http://people.redhat.com/mingo/time-warp-test/ and have some confusing results.My machine is a IBM 3550M2 Nehalem box, kernel 2.6.30. time-warp-test.c findstime warps in gettimeofday() and clock_gettime(CLOCK_MONOTONIC). TEST_TSC doesnot find any timewarps from rdtsc.

Thought I'd ask Ingo & LKML before I dive deeper. Is this a kernel issue,time-warp-test issue, or a problem with my machine? Do you expecttime-warp-test's TEST_TOD to pass on new kernels? I was under the impressionthat the TSC clocksource protected against time warps in gettimeofday().